What does it mean by i2c offset 0x0

[YLu11]

I am sorry if this is a very basic question, I am very new to I2C.

Basically, in mraa i2c library, the description for method int mraa_i2c_read ( mraa_i2c_context dev, uint8_t * data, int length ) is Simple bulk read from an i2c context, this will always begin with the i2c offset 0x0.

So, can anyone help me clarify what does i2c offset 0x0 mean?

Thanks a lot in advance.

[idata · Accepted solution]

Hi,

In this context, the I2C offset 0x0 is the offset address. The offset address is the address of the register being accessed. Data is transferred in sequences of 8 bits so 0x0 means that the i2c read function, when called, will begin to read from this address.Sergio